Apparatus for packaging safety pins



May 4, .1948. s. E. KLOCK ,74

APPARATUS FOR PACKAGING SAFETY PINS Filed Nov. 25, 1944 Patented May 4,1948 OFF CE Wis, assignor to Inter Products Company, Chia corporation ofDelaware Application November 23, 1944, Serial No. 564,863

This invention. relates V a method and apparatus for making the same,and theprincipal objects of the invention are to provide a veryinexpensive but secure package for a limited and predetermined number ofsafety pins;

to provide a method by which the improved package may be rapidly andeconomically made; and to provide apparatus for automatically producingthe package at a high rate of speed. Another object is to provide amachineof the character indicated which will be dependable in operationand will require but little, if any, attention by an operator. i

Other objects and advantages of the invention will be understood byreference to the following specification and accompanying drawing (onesheet) wherein there is illustrated a package em.- bodying a selectedform of the invention together with the method and a selected apparatusfor practicing the method and making the package.

In the drawin l i Fig. 1 is a perspective illustrating one form ofpackage embodying the invention;

Fig. 2 is a perspective illustrating a, strip produced by the method andapparatus about to be described, and from which strip, packages such asshown in Fig. 1 are out; i it i Fig. 3 is a side elevation of apparatusfor practicing the method and producing the improved package, certainportions being broken away and shown in section to better illustrate theconstruction, and V l Fig. 4 is a section on the line 4-4 of Fig. 3.

The package embodies two paper or other sheet material plies I and 2between which are located a pair of safety pins .3. Oneof the tapestrips, such as the tape strip 2, may be made of adhesive tape; that is,tape having one face coated with glue which serves to adhesively unitethe two plies with the safety pins therebetween.

A package such as above described may initially beformed in along strip,such as shown in Fig. 2, from which predetermined lengths may be cut toform packages having two pins or any multiple thereof. e 1

e Th pparatus for forming the packag es" comprises a table 4 abovewhichthere ismounted an endless conveyor 5 which carries a seriesofflights or pusher fingers 6 in regularly spaced relation, thespacingbeing suflicient to receive: between the flights somewhat more than thelength .of the pins to be packaged. The conveyor 5 is mounted centrallyof the tablet so that portions of the table extend laterally from theopposite sides of the conveyor as best, shown in Fig. 4.

members such as-Ga and 6b respectively carried by the chain 5 anddepending therefrom onopposite sides of a partition strip'Jwhich issuitably t 4 Claims. (on. 93- 3) toasafety pinpackage, e

. 1, The flights 6 are in pairs, each pair comprising in arecessedchannel 8 provided in the table 4, the bottom of said channelbeing lined with suitable anti-friction material, suchas smooth metalplates 9 -9. Binsmay bedelivered in pairs by pin-making machinery to'thechannel 8 on opposite sides of the partition lsojas to be positionedin pairs in front of the succeeding pairs of flights 6 or pins may bedeposited in bulk on the table 4 on opposite sides of the channel 8 andmanually fed one'by one into the spaces between the flights 6 onopposite sides of the partition 1.

The conveyor'5 is continuously drivenby means of an electric motor Ill'which drives a speed reducing unit I l havingan output. shaft l2 towhich there is secured a sprocket l3. A chain l4 en gaging the sprocketI3 also engages a sprocket l5 on a suitably. journalledshaft l6 whichalso carries a sprocket H. A chain lfltransmits power from the sprocketll'to a sprocket ona shaft l9 which carries a conveyor chain drivingsprocket 20. The sprocket 20 engages one reach of the conveyor chain 5nearthecorner sprocket 2| which cooperates with other sprockets 22,23and 24 to guide the conveyor chain in a continuous path of traveL, I pv i 0n the shaft Hi there is also mounted a roll 25, the roll beingfastto the shaft It so as to be driven thereby. 1 l a A web of adhesivetape 26 is drawn. from a supply roll 2! of such tape through a suitableguide 28 and over a wetting or glue applying roll 29 and thence aroundthe roll. 25 ,and between said roll and an overlying pressure or squeezeroll 30. Another'web of suitable tape-like material 3ljisldrawn from asupply roll 32 under a guide roll 33. through a suitable guide memberall. and around the squeeze roll 30 so. as to be squeezed into facetoface engagement with the adhesive bearing surfaceof; the tape strip26. The two tape strips thus, joined in face to face relation arecarried forwardly (over a suitably supported guide, ro11 35 and betweenupper and lower press rolls 35' and 31. respectively. The lower pressroll 31 iscontinuously driven by means of "a chain, whichengages asprocket carried by the driven shaft. I 6 and another suitable sprocketon theshaft of the roll 31.; t

Pairs of safety pins fed forward by the successive flights 6 on theoonveyor chain 5 are fed into a suitable chute 39 which conducts orguides the successive pairs'o'f pins into the nip of the convergingtapestrips 26 and 3 I as shown in Fig. 3. The successive pairs ofpins are,of course, deliverejd'in timed relation to each other so that the pairsof pins will be spaced longitudinally from each ot r erilalong thelengths of. the tape strips to therebyproducegthe relationshipillustratedinFig, 2].; ute. 39 orat leastits top wallma'yadvantageouslybe'made of transparentj material;to facilitate inspection of theficiently resilient material to permit the thic lgness of the safety pintO beCQIIle embedded in" the rolls during the passage thei eof btwefitherollsto thereby insure the production of, iace to face contact betweenthe a cut, u'rfa'ce s of the tape strips around the safety, ns, r a

some purposes, it is preferablethat the upp er pressure rolls 30 and 36be-fiiadeo'f resil'in't'material while the lower rolls are made ofrelatively rigid material, the result being that the bottom d 'ii ek swbs fla il foldedta e s. p

ed in their tr neasing a eas la ufidi' h sritee interfiqs d bnsarrangement ina'y f m he .inyep ie 1. In apparatusior packa strips uidanal; posed relation,

iiiorii f said tape strips, one of said tape strips being proy ided withan adhesive coating for adhesively uniting said tapestrips around saidpairs of pins. I 31 111 appa'iatus for making safety pin packtion ofmeans for guiding a ime face to face relation to eb, means fordelivering pairs to position between said strips ofpcsaftyf p ns 'and'iifspai5d rltion lengthwise thereof, said pin ,;c,leli veri;ng meanscomprising a table having a channel therein, a partition strip extendingis its m r' isle' e ng disposed "sur ace (if-said 7 "side hereof, lyonyyihg safety i V d as inclination afsam hute-seivm taqetmime the frcewith ,whichsa d.sa tv i i vr Peseta-mat.

snsm mncnszernnn he .is wsa s g sasss ans-9i sea s "the usirinissmazssrmrgmzs {strips on of V

